90218476503 has 12 divisors (see below), whose sum is σ = 130333954608. Its totient is φ = 60137169120.

The previous prime is 90218476471. The next prime is 90218476507. The reversal of 90218476503 is 30567481209.

90218476503 is a `hidden beast` number, since 90 + 2 + 18 + 47 + 6 + 503 = 666.

It is not a de Polignac number, because 90218476503 - 2⁵ = 90218476471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90218476507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639118 + ... + 767403.

It is an arithmetic number, because the mean of its divisors is an integer number (10861162884).

It is a 1-persistent number, because it is pandigital, but 2⋅90218476503 = 180436953006 is not.

Almost surely, 2^90218476503 is an apocalyptic number.

90218476503 is a deficient number, since it is larger than the sum of its proper divisors (40115478105).

90218476503 is a wasteful number, since it uses less digits than its factorization.

90218476503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413654 (or 1413651 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 90218476503 in words is "ninety billion, two hundred eighteen million, four hundred seventy-six thousand, five hundred three".